ICE: index out of bounds: the len is 1 but the index is 1 -Cinstrument-coverage #102989
Description
Code
found via fuzzing
#![no_core] #![feature(no_core, lang_items)] #[lang="sized"] trait Sized { } fn ref_Struct(self: &Struct, f: &u32) -> &u32 { let x = x << 1; }Meta
rustc --version --verbose:
rustc 1.66.0-nightly (c0983a9aa 2022-10-12) binary: rustc commit-hash: c0983a9aac889d16722a12602ac678051e62c3fb commit-date: 2022-10-12 host: x86_64-unknown-linux-gnu release: 1.66.0-nightly LLVM version: 15.0.2 Error output
rustc -Cinstrument-coverage file.rs
error: `self` parameter is only allowed in associated functions --> icemaker_87671.rs:6:15 | 6 | fn ref_Struct(self: &Struct, f: &u32) -> &u32 { | ^^^^ not semantically valid as function parameter | = note: associated functions are those in `impl` or `trait` definitions error[E0412]: cannot find type `Struct` in this scope --> icemaker_87671.rs:6:22 | 6 | fn ref_Struct(self: &Struct, f: &u32) -> &u32 { | ^^^^^^ not found in this scope error[E0425]: cannot find value `x` in this scope --> icemaker_87671.rs:7:13 | 7 | let x = x << 1; | ^ help: a local variable with a similar name exists: `f` error: `profiler_builtins` crate (required by compiler options) is not compatible with crate attribute `#![no_core]` error[E0601]: `main` function not found in crate `icemaker_87671` --> icemaker_87671.rs:8:2 | 8 | } | ^ consider adding a `main` function to `icemaker_87671.rs` error[E0152]: found duplicate lang item `sized` --> icemaker_87671.rs:4:1 | 4 | trait Sized { } | ^^^^^^^^^^^ | = note: the lang item is first defined in crate `core`. = note: first definition in `core` loaded from /home/matthias/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-05898138a596088a.rlib = note: second definition in the local crate (`icemaker_87671`) error: `#[panic_handler]` function required, but not found error: language item required, but not found: `eh_personality` | = note: this can occur when a binary crate with `#![no_std]` is compiled for a target where `eh_personality` is defined in the standard library = help: you may be able to compile for a target that doesn't need `eh_personality`, specify a target with `--target` or in `.cargo/config` Backtrace
thread 'rustc' panicked at 'index out of bounds: the len is 1 but the index is 1', /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/compiler/rustc_middle/src/ty/subst.rs:371:43 stack backtrace: 0: 0x7f2bca6995b0 - std::backtrace_rs::backtrace::libunwind::trace::h0bf6f02637fe6971 at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 1: 0x7f2bca6995b0 - std::backtrace_rs::backtrace::trace_unsynchronized::hca573de4ebdee142 at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 2: 0x7f2bca6995b0 - std::sys_common::backtrace::_print_fmt::h78a3b0f3fa5431ce at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/sys_common/backtrace.rs:66:5 3: 0x7f2bca6995b0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h388012888db78658 at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/sys_common/backtrace.rs:45:22 4: 0x7f2bca6f559e - core::fmt::write::h8541eee12bfb22e1 at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/core/src/fmt/mod.rs:1209:17 5: 0x7f2bca689835 - std::io::Write::write_fmt::haf5892ef07750179 at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/io/mod.rs:1680:15 6: 0x7f2bca69c353 - std::sys_common::backtrace::_print::hd2a58ab324867b58 at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/sys_common/backtrace.rs:48:5 7: 0x7f2bca69c353 - std::sys_common::backtrace::print::h62650e0a0854a421 at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/sys_common/backtrace.rs:35:9 8: 0x7f2bca69c353 - std::panicking::default_hook::{{closure}}::h0c0249b3670af819 at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/panicking.rs:267:22 9: 0x7f2bca69c02a - std::panicking::default_hook::hdd3bdd204a1e5f34 at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/panicking.rs:286:9 10: 0x7f2bccfd8641 - rustc_driver[1f63e0707e3aafaf]::DEFAULT_HOOK::{closure#0}::{closure#0} 11: 0x7f2bca69cb8b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6f493fd9c4eb244a at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/alloc/src/boxed.rs:1952:9 12: 0x7f2bca69cb8b - std::panicking::rust_panic_with_hook::hcdeb5a66936a633b at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/panicking.rs:673:13 13: 0x7f2bca69c9e7 - std::panicking::begin_panic_handler::{{closure}}::h76d64f438650eafd at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/panicking.rs:560:13 14: 0x7f2bca699a5c - std::sys_common::backtrace::__rust_end_short_backtrace::h6159ba2d4e07f4de at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/sys_common/backtrace.rs:138:18 15: 0x7f2bca69c702 - rust_begin_unwind at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/panicking.rs:556:5 16: 0x7f2bca6f2173 - core::panicking::panic_fmt::h811742b56cf0125a at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/core/src/panicking.rs:142:14 17: 0x7f2bca6f20b2 - core::panicking::panic_bounds_check::hfee18f8513cbc676 at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/core/src/panicking.rs:84:5 18: 0x7f2bcde70c44 - <rustc_infer[47b922782ea47410]::infer::error_reporting::TypeErrCtxt as rustc_trait_selection[a031dbb00953ed73]::traits::error_reporting::suggestions::TypeErrCtxtExt>::suggest_floating_point_literal 19: 0x7f2bcde75abd - <rustc_infer[47b922782ea47410]::infer::error_reporting::TypeErrCtxt as rustc_trait_selection[a031dbb00953ed73]::traits::error_reporting::TypeErrCtxtExt>::report_selection_error 20: 0x7f2bcde7dc4a - <rustc_infer[47b922782ea47410]::infer::error_reporting::TypeErrCtxt as rustc_trait_selection[a031dbb00953ed73]::traits::error_reporting::InferCtxtPrivExt>::report_fulfillment_error 21: 0x7f2bcde71cf2 - <rustc_infer[47b922782ea47410]::infer::error_reporting::TypeErrCtxt as rustc_trait_selection[a031dbb00953ed73]::traits::error_reporting::TypeErrCtxtExt>::report_fulfillment_errors 22: 0x7f2bcbc50540 - <rustc_hir_analysis[a6a5d63f9823a7da]::check::fn_ctxt::FnCtxt>::check_overloaded_binop 23: 0x7f2bcbbc36be - <rustc_hir_analysis[a6a5d63f9823a7da]::check::fn_ctxt::FnCtxt>::check_binop 24: 0x7f2bcbbb6213 - <rustc_hir_analysis[a6a5d63f9823a7da]::check::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args 25: 0x7f2bcbbdf451 - <rustc_hir_analysis[a6a5d63f9823a7da]::check::fn_ctxt::FnCtxt>::check_decl 26: 0x7f2bcbbdbaeb - <rustc_hir_analysis[a6a5d63f9823a7da]::check::fn_ctxt::FnCtxt>::check_block_with_expected 27: 0x7f2bcbbb4bfe - <rustc_hir_analysis[a6a5d63f9823a7da]::check::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args 28: 0x7f2bcc50fba6 - <rustc_hir_analysis[a6a5d63f9823a7da]::check::fn_ctxt::FnCtxt>::check_return_expr 29: 0x7f2bcc506850 - rustc_hir_analysis[a6a5d63f9823a7da]::check::check::check_fn 30: 0x7f2bcc4f813c - <rustc_hir_analysis[a6a5d63f9823a7da]::check::inherited::InheritedBuilder>::enter::<rustc_hir_analysis[a6a5d63f9823a7da]::check::typeck_with_fallback<rustc_hir_analysis[a6a5d63f9823a7da]::check::typeck::{closure#0}>::{closure#1}, &rustc_middle[a8ed4a0dc47aac3]::ty::context::TypeckResults> 31: 0x7f2bcc4f700c - rustc_hir_analysis[a6a5d63f9823a7da]::check::typeck 32: 0x7f2bcc617595 - rustc_query_system[a76597d842537d9]::query::plumbing::try_execute_query::<rustc_query_impl[1e7ed5a7eb258aab]::plumbing::QueryCtxt, rustc_query_system[a76597d842537d9]::query::caches::DefaultCache<rustc_span[ddec628aeed15f05]::def_id::LocalDefId, &rustc_middle[a8ed4a0dc47aac3]::ty::context::TypeckResults>> 33: 0x7f2bcced91ee - <rustc_query_impl[1e7ed5a7eb258aab]::Queries as rustc_middle[a8ed4a0dc47aac3]::ty::query::QueryEngine>::typeck 34: 0x7f2bccd09df7 - rustc_data_structures[fec937313883fa6d]::sync::par_for_each_in::<&[rustc_span[ddec628aeed15f05]::def_id::LocalDefId], <rustc_middle[a8ed4a0dc47aac3]::hir::map::Map>::par_body_owners<rustc_hir_analysis[a6a5d63f9823a7da]::check::typeck_item_bodies::{closure#0}>::{closure#0}> 35: 0x7f2bccd09bb3 - rustc_hir_analysis[a6a5d63f9823a7da]::check::typeck_item_bodies 36: 0x7f2bccc2b66a - rustc_query_system[a76597d842537d9]::query::plumbing::try_execute_query::<rustc_query_impl[1e7ed5a7eb258aab]::plumbing::QueryCtxt, rustc_query_system[a76597d842537d9]::query::caches::DefaultCache<(), ()>> 37: 0x7f2bccc2b397 - rustc_query_system[a76597d842537d9]::query::plumbing::get_query::<rustc_query_impl[1e7ed5a7eb258aab]::queries::typeck_item_bodies, rustc_query_impl[1e7ed5a7eb258aab]::plumbing::QueryCtxt> 38: 0x7f2bcc9d07cf - <rustc_session[8b98ba4aacc9d309]::session::Session>::time::<(), rustc_hir_analysis[a6a5d63f9823a7da]::check_crate::{closure#7}> 39: 0x7f2bcc9d039f - rustc_hir_analysis[a6a5d63f9823a7da]::check_crate 40: 0x7f2bcc9cfea7 - rustc_interface[cf2fa28a67e8bef]::passes::analysis 41: 0x7f2bccd629e4 - rustc_query_system[a76597d842537d9]::query::plumbing::try_execute_query::<rustc_query_impl[1e7ed5a7eb258aab]::plumbing::QueryCtxt, rustc_query_system[a76597d842537d9]::query::caches::DefaultCache<(), core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>>> 42: 0x7f2bccd62717 - rustc_query_system[a76597d842537d9]::query::plumbing::get_query::<rustc_query_impl[1e7ed5a7eb258aab]::queries::analysis, rustc_query_impl[1e7ed5a7eb258aab]::plumbing::QueryCtxt> 43: 0x7f2bcbc91044 - <rustc_interface[cf2fa28a67e8bef]::passes::QueryContext>::enter::<rustc_driver[1f63e0707e3aafaf]::run_compiler::{closure#1}::{closure#2}::{closure#3}, core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>> 44: 0x7f2bcbc8d496 - <rustc_interface[cf2fa28a67e8bef]::interface::Compiler>::enter::<rustc_driver[1f63e0707e3aafaf]::run_compiler::{closure#1}::{closure#2}, core[fae631be8e3c81b5]::result::Result<core[fae631be8e3c81b5]::option::Option<rustc_interface[cf2fa28a67e8bef]::queries::Linker>, rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>> 45: 0x7f2bcbc8843c - rustc_span[ddec628aeed15f05]::with_source_map::<core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>, rustc_interface[cf2fa28a67e8bef]::interface::create_compiler_and_run<core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>, rustc_driver[1f63e0707e3aafaf]::run_compiler::{closure#1}>::{closure#1}> 46: 0x7f2bcbc87e3f - rustc_interface[cf2fa28a67e8bef]::interface::create_compiler_and_run::<core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>, rustc_driver[1f63e0707e3aafaf]::run_compiler::{closure#1}> 47: 0x7f2bcbc87032 - <scoped_tls[4da31d6f3f5146b7]::ScopedKey<rustc_span[ddec628aeed15f05]::SessionGlobals>>::set::<rustc_interface[cf2fa28a67e8bef]::interface::run_compiler<core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>, rustc_driver[1f63e0707e3aafaf]::run_compiler::{closure#1}>::{closure#0}, core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>> 48: 0x7f2bcbc8650f - std[7bd0f41fe60b70b6]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[cf2fa28a67e8bef]::util::run_in_thread_pool_with_globals<rustc_interface[cf2fa28a67e8bef]::interface::run_compiler<core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>, rustc_driver[1f63e0707e3aafaf]::run_compiler::{closure#1}>::{closure#0}, core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>>::{closure#0}, core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>> 49: 0x7f2bcbc8637f - <<std[7bd0f41fe60b70b6]::thread::Builder>::spawn_unchecked_<rustc_interface[cf2fa28a67e8bef]::util::run_in_thread_pool_with_globals<rustc_interface[cf2fa28a67e8bef]::interface::run_compiler<core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>, rustc_driver[1f63e0707e3aafaf]::run_compiler::{closure#1}>::{closure#0}, core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>>::{closure#0}, core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>>::{closure#1} as core[fae631be8e3c81b5]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} 50: 0x7f2bca6a6793 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hc67cb2c032770d7f at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/alloc/src/boxed.rs:1938:9 51: 0x7f2bca6a6793 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::he79e59a805a8533c at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/alloc/src/boxed.rs:1938:9 52: 0x7f2bca6a6793 - std::sys::unix::thread::Thread::new::thread_start::hae509166483801f9 at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/sys/unix/thread.rs:108:17 53: 0x7f2bca3fc8fd - <unknown> 54: 0x7f2bca47ea60 - <unknown> 55: 0x0 - <unknown> error: internal compiler error: unexpected panic note: the compiler unexpectedly panicked. this is a bug. note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md note: rustc 1.66.0-nightly (db0597f56 2022-10-11) running on x86_64-unknown-linux-gnu note: compiler flags: -C instrument-coverage query stack during panic: #0 [typeck] type-checking `ref_Struct` #1 [typeck_item_bodies] type-checking all item bodies #2 [analysis] running analysis passes on this crate end of query stack error: aborting due to 8 previous errors Some errors have detailed explanations: E0152, E0412, E0425, E0601. For more information about an error, try `rustc --explain E0152`. Metadata
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Area: Source-based code coverage (-Cinstrument-coverage)Category: This is a bug.`#![feature(no_core)]`Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️Relevant to the compiler team, which will review and decide on the PR/issue.This issue requires a nightly compiler in some way.